Selenium 4 C# Chrome DevTools

Question

I would like to intercept the error messages from network Fetch/XHR . Which method should I take or how can I make a connection and intercept this information? I know this is necessary code base:

    driver = new ChromeDriver();
                driver.Manage().Window.Maximize();
                devTools = driver as IDevTools;
                session = devTools.GetDevToolsSession();
                devToolsSession = session.GetVersionSpecificDomains<DevToolsSessionDomains>();
                devToolsSession.Network.Enable(new Network.EnableCommandSettings());

I tried to create an EventHandler but unfortunately, this requestID of event doesn't match with requestID of the DevTools parameter. How should I get requestID and what method do I need to intercept errors which appear on the preview page of the Network

Answer 1

All errors should log to console domain. Maybe you looking for this

devToolsSession.Domains.JavaScript.ConsoleApiCalled += (sender, e) =>
{
       Console.WriteLine("Log: {0} {1}", e.Timestamp, e.Type);
       e.Arguments.ToList().ForEach(x => Console.WriteLine($"Type: {x.Type}, 
       Value: {x.Value}"));
};

or intercept the traffic(not tested)

List<long> httpStatuses = new List<long>() { 500, 501, 502, 503, 504 };
    
_driver.GetDevToolsSession().Domains.Network.ResponsePaused += (o, args) =>
{
  if (httpStatuses.Contains(args.ResponseData.StatusCode))
                        //log something...
};